FriedGrass FriedGrass

24-10-2020
Mathematics

contestada

Which three steps are correct when solving this quadratic equation by completing the square?
x² + 8x +15=0

Respuesta :

bestbaby953 bestbaby953

24-10-2020

Step-by-step explanation:

x²+8x+15=0

x²+8x=-15

x²-8x+(8×½)²=-15+(8×½)

(x-8/2)²=-15+64/4

(x-8/2)²=4/4

take the square root of both sides

x-8/2=±√4/4

x-8/2±2/2

x=8/2+2/2 or 8/2-2/2

x=10/2 or 6/2

x=5 or 3 ans

Answer Link

Otras preguntas

match the equation below

PLEASE ANSWER I GIVE BRAINLIEST AND MAX POINTS

1. Adam opened a savings account with $250. He saves $300 per month. Mandy opened a savings account with $750. She saves $200 per month. How much more will Adam

They saw a haunted house in the wood. noun or verb

effects of the 19th amendment on American women in the 1920s .

The longest entry from Pepys’s diary that you read is an account of the Great Fire of London. According to the excerpt, how does Pepys react to the fire? Did hi

Who painted the image above? a. Jean-Francois Millet b. Gustave Courbet c. Thomas Eakins d. Honore Daumier

Which number is greater? 3√35 √8

Ano ang pagkaunawa mo o nabuo mong ideya tungkol sa katarungang panlipunan?

Which of the following options have the same value as 2%, percent of 90? Choose 2 answers: